CN218313017U - Positioning clamp - Google Patents

Abstract

The application provides a positioning fixture, includes: the clamping device comprises a first clamping piece, a movable base plate, a second clamping piece and a bearing plate. The movable base plate and the first clamping piece are arranged at intervals. The second clamping piece is arranged between the first clamping piece and the movable base plate, and the second clamping piece is elastically connected with the movable base plate. The bearing plate is provided with the movable base plate, and the bearing plate can drive the movable base plate to drive the second clamping piece to be close to or far away from the first clamping piece, so that the second clamping piece is matched with the first clamping piece to perform positioning and clamping operation. The application provides a positioning fixture passes through second clamping piece and activity base plate elastic connection, self-adaptation regulation when can realizing positioning fixture centre gripping material, and the position precision of centre gripping material is high to when realizing multiunit positioning fixture centre gripping material simultaneously, every material can both be held by the centre gripping.

Description

Positioning clamp

Technical Field

The application relates to the technical field of tooling fixtures, in particular to a positioning clamp.

Background

The existing slice clamp is provided with two fixing seats which are parallel to each other, a first fixing seat and a second fixing seat, the two fixing seats are connected through two parallel sliding rods, a movable seat is sleeved on each sliding rod, a movable seat mounting groove and a fixing seat mounting groove are respectively arranged on one surface, opposite to the first fixing seat, of the movable seat, and a spring connected to the first fixing seat is arranged on the movable seat. The sheet clamp clamps the product between the movable seat and the first fixed seat through the spring force of the movable seat.

When the existing sheet clamp is used for clamping, the movable seat needs to be manually opened, and the production efficiency of manually opening the clamp is lower. And the sheet anchor clamps lean on the spring force of sliding seat to centre gripping the product between the fixing base, and the position accuracy of centre gripping product can't be guaranteed to anchor clamps, is unfavorable for realizing pressing from both sides tight a plurality of products simultaneously. How to solve the above problems is considered by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present application provides a positioning jig, including: the clamping device comprises a first clamping piece, a movable base plate, a second clamping piece and a bearing plate. The movable base plate and the first clamping piece are arranged at intervals. The second clamping piece is arranged between the first clamping piece and the movable base plate, and the second clamping piece is elastically connected with the movable base plate. The bearing plate is provided with the movable base plate, and the bearing plate can drive the movable base plate to drive the second clamping piece to be close to or far away from the first clamping piece, so that the second clamping piece is matched with the first clamping piece to perform positioning and clamping operation.

In a possible embodiment, the positioning fixture further includes an open-position member, which is disposed on the bearing plate and located on a side of the movable base plate facing the first clamping member, and is used for pushing the second clamping member back toward the movable base plate.

In a possible embodiment, the open member includes a fixed portion and an arm portion, the fixed portion is disposed on the carrier plate, the arm portion extends from the fixed portion and is located on a side of the second clamping member facing away from the movable base plate, and a space for the second clamping member to move is enclosed by the arm portion, the fixed portion and the movable base plate.

In a possible embodiment, the positioning jig further comprises a guide post extending through the movable base plate and the second clamping member toward the first clamping member.

In a possible embodiment, the positioning fixture further includes an elastic member, and the elastic member is disposed between the movable base plate and the second clamping member and is sleeved on the guide post.

In a possible embodiment, the positioning fixture further includes an elastic member, the elastic member is disposed between the movable base plate and the second clamping member, and two opposite ends of the elastic member are respectively fixed on the movable base plate and the second clamping member.

In a possible embodiment, the positioning fixture further includes a guide rail, and a guide piece engaged with the guide rail is further disposed on the carrying plate, and the carrying plate can move along the guide rail by engagement of the guide piece and the guide rail.

In a possible embodiment, the positioning fixture further comprises a driving member, and the driving member is in driving connection with the bearing plate.

In a possible embodiment, the positioning fixture further includes a connecting member, and the connecting member connects the driving member and the bearing plate.

In a possible embodiment, the positioning fixture further comprises a limiting block, the limiting block is arranged in the moving direction of the bearing plate and is arranged at an interval with the bearing plate, the limiting block is used for abutting against the bearing plate after the bearing plate moves to a target position, and the target position is a position corresponding to the positioning and clamping operation.

Compared with the prior art, the positioning fixture drives the movable base plate to drive the second clamping piece to be close to or far away from the first clamping piece through the bearing plate so that the second clamping piece is matched with the first clamping piece to perform positioning and clamping operation. When the positioning fixture clamps the material, the second clamping piece is elastically connected with the movable base plate, so that the size of the opening between the second clamping piece and the first clamping piece can be adaptively adjusted according to the position of the material. Therefore, when multiple groups of positioning clamps clamp materials at the same time, the multiple groups of positioning clamps can adjust the opening size of each second clamping piece according to the positions of the materials. The clamping precision of the positioning clamp is improved, and the multiple groups of positioning clamps clamp all the materials at the same time.

Drawings

Fig. 1 is a front view schematically illustrating a partial structure of an embodiment of a positioning jig of the present application.

Fig. 2 is a perspective view of the positioning jig of fig. 1 with an open-position member added.

Fig. 3 is an exploded view of a portion of the components of the positioning fixture of fig. 2.

Fig. 4 is a front schematic view of the positioning jig of fig. 2.

Fig. 5 is a perspective view of the positioning fixture of fig. 2 with a driving member and a plurality of first and second clamping members forming at least two positioning fixtures.

Fig. 6 is a perspective view of the positioning fixture of fig. 5 from another perspective.

Description of the main elements

Positioning fixture 1

First clamping member 11

Fixing member 111

Avoidance slot 112

Movable base plate 12

First through-hole 121

Second clamping part 13

Head 131

Shoulder 132

Second through hole 133

Carrier plate 14

Guide 141

Opening member 15

Fixing part 151

Arm 152

Guide post 16

Elastic member 17

Spring 171

Guide rail 18

Driving member 19

Connecting piece 191

Stop block 192

Frame 193

Moving end 194

Positioning post 195

Material 2

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The following description will refer to the accompanying drawings to more fully describe the present disclosure. Exemplary embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like reference numerals designate identical or similar components.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Furthermore, unless otherwise explicitly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this application and will not be interpreted in an idealized or overly formal sense.

The following description of the exemplary embodiments refers to the accompanying drawings. It should be noted that the components illustrated in the referenced figures are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar terms.

Embodiments of the present application will now be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the present application provides a positioning fixture 1, which includes a first clamping member 11, a movable substrate 12, a second clamping member 13 and a carrier plate 14. The movable base plate 12 is spaced apart from the first clamping member 11. The second clamp 13 is provided between the first clamp 11 and the movable base plate 12, and the second clamp 13 is elastically connected to the movable base plate 12. The bearing plate 14 is provided with a movable substrate 12, and the bearing plate 14 can drive the movable substrate 12 to drive the second clamping member 13 to be close to or far away from the first clamping member 11, so that the second clamping member 13 is matched with the first clamping member 11 to perform positioning and clamping operations.

In this embodiment, the first clamping member 11 and the second clamping member 13 may be clamping blocks, and the second clamping member 13 cooperates with the first clamping member 11 to clamp the material 2. Preferably, the surfaces of the first clamping member 11 and the second clamping member 13, which are in contact with the material 2, are arranged in a profiling manner, so that the first clamping member 11 and the second clamping member 13 are respectively attached to the surface of the material 2, thereby being beneficial to positioning and clamping the material 2. Two ways of clamping the material 2 are provided in fig. 1, shown as the solid line material 2 in fig. 1, showing that the material 2 is clamped between the first clamping member 11 and the second clamping member 13, clamping the material 2 when the first clamping member 11 and the second clamping member 13 are brought closer to each other, and releasing the material 2 when the first clamping member 11 and the second clamping member 13 are moved away from each other. The material 2 is clamped on two opposite sides of the first clamping member 11 and the second clamping member 13, as shown by the dashed material 2 in fig. 1, and the material 2 is clamped when the first clamping member 11 and the second clamping member 13 are away from each other and loosened when the first clamping member 11 and the second clamping member 13 are close to each other.

In an embodiment, the positioning fixture 1 further includes an elastic member 17, the elastic member 17 is disposed between the movable substrate 12 and the second clamping member 13, and two opposite ends of the elastic member 17 are respectively fixed on the movable substrate 12 and the second clamping member 13.

The second clamping member 13 is connected to the elastic member 17, so that the second clamping member 13 has an elastic expansion function when clamping the material 2, and is used for flexibly adjusting the position of the second clamping member 13 for clamping the material 2. The elastic expansion and clamping surface profiling of the second clamping piece 13 is beneficial to flexibly adjusting the second clamping piece 13 according to the position and shape of the material 2, so that the precision of the position and shape of the material 2 clamped by the positioning clamp 1 is improved. First clamping member 11 may be attached to stationary member 111 such that first clamping member 11 does not move. The second clamping member 13 is elastically connected to the movable base plate 12 through an elastic member 17, and the movable base plate 12 may be a connection plate with a regular shape, so that the elastic member 17 is conveniently connected to the surface of the movable base plate 12. The carrier plate 14 may be a strip-shaped connecting plate, the carrier plate 14 is connected to the movable substrate 12 by a screw locking method, and the carrier plate 14 is used to drive the movable substrate 12 to move. When the positioning clamp 1 clamps or loosens the material 2, the movable base plate 12 is moved to drive the second clamping part 13 to move, so that the second clamping part 13 is matched with the first clamping part 11 to perform positioning clamping or loosening operation.

No matter the positioning fixture 1 provided by the embodiment clamps the material 2 in a manner that the first clamping piece 11 and the second clamping piece 13 are close to or far away from each other, the positioning fixture 1 can be elastically connected with the movable base plate 12 through the second clamping piece 13, and the second clamping piece 13 and the first clamping piece 11 are matched to position and clamp the material 2. The first clamping member 11 and the second clamping member 13 are described below as being close to each other to clamp the material 2.

Referring to fig. 2 and fig. 3, in an embodiment, the positioning fixture 1 further includes an opening member 15, the opening member 15 is disposed on the carrier plate 14 and located on a side of the movable substrate 12 facing the first clamping member 11, and is used for pushing the second clamping member 13 back toward the movable substrate 12.

In one embodiment, the open member 15 includes a fixing portion 151 and an arm portion 152, the fixing portion 151 is disposed on the carrier plate 14, the arm portion 152 extends from the fixing portion 151, the arm portion 152 is located on a side of the second clamping member 13 away from the movable substrate 12, and a space for the second clamping member 13 to move is enclosed by the arm portion 152, the fixing portion 151 and the movable substrate 12.

In the present embodiment, the fixing portion 151 of the open piece 15 is a plate, and the arm portion 152 is bent and extended upward from one side of the fixing portion 151 for being disposed between the first clamping member 11 and the second clamping member 13 at an initial position, which is a position where the first clamping member 11 and the second clamping member 13 are located when they are not approaching each other to clamp the material 2. Further, the arm 152 extends vertically upward from the side edge of the fixing portion 151 close to the first clamping member 11, for example, the number of the arm 152 may be two, and the two arm 152 may be two longitudinal sheets arranged at intervals. The two longitudinal sheets can be symmetrically disposed about the fixing portion 151. It will be appreciated that in other embodiments the arm 152 may have other shapes, provided that it is achieved that the second clamp member 13 can be pushed back when releasing the material 2. The fastening portion 151 is connected to the carrier plate 14, and the open piece 15 is spaced apart from the first clamping piece 11. The fixing member 111 is provided with an avoiding groove 112, and the avoiding groove 112 is a hole formed in the fixing member 111 and located on the lower side of the first clamping member 11 in fig. 2. When the positioning jig 1 is in the initial position without clamping the material 2, the arm portion 152 is accommodated in the right side of the first clamping member 11 in fig. 2, that is, in the portion of the avoiding groove 112 that does not protrude rightward in the horizontal direction from the first clamping member 11. When the positioning fixture 1 is away from the initial position to clamp the material 2, the arm 152 is accommodated in the left side of the first clamping member 11 in fig. 2, that is, in the portion of the avoiding groove 112 protruding rightward from the first clamping member 11 in the horizontal direction, the avoiding groove 112 is used for reserving a space for movement of the arm 152 in the open part 15, and the arm 152 is prevented from interfering with the fixing member 111 when the second clamping member 13 clamps the material 2. The second clamping member 13 includes a head 131 and a shoulder 132 extending downward from a lower end of the head 131. The head 131 is integrally connected with the shoulder 132, and the head 131 and the shoulder 132 are respectively a small and a large clamping blocks. The head 131 is used for clamping the material 2, and the head 131 and the material 2 are arranged in a copying manner. The upper end of the shoulder 132 is integrally connected to the head 131, and the lower end of the shoulder 132 is connected to the fixing portion 151. The portion of shoulder 132 projecting laterally beyond head 131 is adapted to abut arm 152. When the positioning clamp 1 releases the material 2, the bearing plate 14 drives the arm 152 to retreat through the fixing portion 151, and the arm 152 pushes the shoulder 132 by abutting against the part of the shoulder 132 protruding out of the head 131 in the transverse direction, so that the second clamping piece 13 and the first clamping piece 11 are separated from each other, which is beneficial to opening the positioning clamp 1.

Specifically, when the positioning fixture 1 releases the material 2, the carrying plate 14 drives the movable substrate 12 to move in a direction away from the first clamping member 11, and simultaneously the carrying plate 14 also drives the opening member 15 to move in a direction toward the movable substrate 12. The positioning member 15 abuts against the second clamping member 13 to move it in a direction away from the first clamping member 11. When the movable base plate 12 moves in a direction away from the first clamping member 11, the elastic member 17 is gradually restored from the compressed state to the relaxed state at the beginning, and the second clamping member 13 is not separated from the first clamping member 11 by the elastic force of the elastic member 17. In contrast, the second clamping member 13 is pushed back toward the movable base plate 12 by providing the positioning member 15, so that the second clamping member 13 is separated from the first clamping member 11, and the operation of loosening the material 2 by the positioning jig 1 is completed.

Referring to fig. 4, in an embodiment, the positioning fixture 1 further includes a guiding post 16, and the guiding post 16 passes through the movable base plate 12 and the second clamping member 13 and extends toward the first clamping member 11.

The guide posts 16 serve as a guide for the movement of the second clamping part 13 and of the movable base plate 12 relative to the first clamping part 11. The guide posts 16 are used for improving the position accuracy of the second clamping member 13 and the movable base plate 12 when approaching or departing from the first clamping member 11, so as to improve the clamping accuracy of the positioning clamp 1.

In this embodiment, the guide post 16 is shaped as a cylinder, and the second clamping member 13 and the movable base plate 12 move along the length direction of the cylinder. The guide posts 16 can penetrate through different positions of the second clamping member 13 and the movable base plate 12, so that the accuracy of the linear motion of the second clamping member 13 and the movable base plate 12 is improved. The movable base plate 12 is provided with a first through hole 121, the second clamping member 13 is provided with a second through hole 133, the surfaces of the guide posts 16 are slidably connected with the inner surfaces of the first through hole 121 and the second through hole 133 respectively, and the guide posts 16 are matched with the surfaces of the first through hole 121 and the second through hole 133 so as to limit the movement of the second clamping member 13 and the movable base plate 12 along the length direction of the guide posts 16. Preferably, the guide post 16 simultaneously passes through the first clamping element 11.

In an embodiment, the positioning fixture 1 further includes an elastic member 17, wherein the elastic member 17 is disposed between the movable substrate 12 and the second clamping member 13 and is sleeved on the guiding post 16.

In this embodiment, two setting modes of the elastic member 17 are provided, the elastic member 17 includes a spring 171, and the spring 171 can be sleeved on the outer surface of the guide post 16, so that not only the elastic clamping function can be achieved, but also the direction of the elastic force of the elastic member 17 can be limited in the linear direction through the guide post 16, which is beneficial to the stable output of the elastic force of the elastic member 17. The elastic member 17 can also be arranged between the movable base plate 12 and the second clamping member 13, and the elastic member 17 is not sleeved on the outer surface of the guide post 16, so that the elastic member 17 can be conveniently detached, and the elastic member 17 can be replaced under the condition that the guide post 16 is not detached.

Referring to fig. 5, in an embodiment, the positioning fixture 1 further includes a guide rail 18, the carrier plate 14 is further provided with a guide 141 engaged with the guide rail 18, and the carrier plate 14 can move along the guide rail 18 through the engagement of the guide 141 and the guide rail 18.

In one embodiment, the positioning fixture 1 further includes a driving member 19, and the driving member 19 is connected to the carrier plate 14.

In one embodiment, the positioning fixture 1 further includes a connecting member 191, and the connecting member 191 connects the driving member 19 and the supporting plate 14.

Furthermore, the driving member 19 transmits the driving force to the bearing plate 14 through the connecting member 191, the bearing plate 14 moves along the guide rail 18, and the guide rail 18 is beneficial to improving the moving position precision of the bearing plate 14, so that the bearing plate 14 drives a plurality of groups of movable substrates 12 to clamp a plurality of groups of materials 2.

In the present embodiment, the shape of the rail 18 is linear, and the extending direction of the rail 18 is arranged parallel to the longitudinal direction of the guide post 16. It will be appreciated that in other embodiments, the rail 18 may have other desired shapes. The positioning jig 1 further includes a frame 193, and the guide rail 18 is fixed to the frame 193. The carrier plate 14 is fixed to the frame 193, and the carrier plate 14 is provided with a guide 141 for guiding, and the guide 141 is movably connected to the guide rail 18. The guide member 141 may be a pulley or a slide groove engaged with the guide rail 18, and the guide member 141 moves in a linear direction of the guide rail 18. The driving member 19 may be a telescopic cylinder drive or a stepping motor drive for providing power to the positioning clamp 1 for clamping or unclamping the material 2. The bearing plate 14 is arranged on one side surface of the rack 193, the driving part 19 is arranged on the other side surface of the rack 193, and the driving part 19 is in transmission connection with the bearing plate 14 through the connecting part 191. The connecting member 191 may be a connecting block, the connecting member 191 is disposed through the frame 193, one end of the connecting member 191 is connected to the driving end of the driving member 19, the other end of the connecting member 191 is fixedly connected to the bearing plate 14, and the connecting member 191 is used for transmitting the power of the driving member 19.

Referring to fig. 6, in an embodiment, the positioning fixture 1 further includes a limiting block 192, the limiting block 192 is disposed in the moving direction of the bearing plate 14 and spaced apart from the bearing plate 14, the limiting block 192 is configured to abut against the bearing plate 14 after the bearing plate 14 moves to a target position, and the target position is a position corresponding to the positioning and clamping operation.

Further, the limiting block 192 serves to limit the movement of the carrier plate 14, and the moving position of the carrier plate 14 can be adjusted by adjusting the position of the limiting block 192, so as to adjust the moving position of the movable substrate 12. When the positioning clamp 1 clamps the material 2, the movable substrate 12 drives the second clamping member 13 to abut against the first clamping member 11, so that the movable substrate 12 and the second clamping member 13 compress the elastic member 17. Since the first clamping member 11 is immovable with respect to the frame 193, adjusting the moving position of the movable base 12 adjusts the compressed length of the elastic member 17, thereby changing the elastic force of the elastic member 17. The magnitude of the elastic force of the elastic member 17 is changed to adjust the clamping force between the second clamping member 13 and the first clamping member 11.

In this embodiment, the first clamping member 11 is fixed to the frame 193, and the carrying plate 14 drives the movable base plate 12 to move, so that the second clamping member 13 moves to a position for clamping the material 2. The limiting block 192 is disposed on the frame 193 and fixedly connected to the frame 193. The driving member 19 drives the connecting member 191 to move, and when the connecting member 191 drives the bearing plate 14 to move to the target position, the limiting block 192 abuts against the connecting member 191 at this time, so as to limit the bearing plate 14 to continue moving. The target position of the limiting block 192 abutting against the connecting piece 191 is a position corresponding to the positioning clamping operation.

The positioning jig 1 further includes a moving end 194, the moving end 194 is connected to the frame 193, and the moving end 194 provides a motive force for the frame 193 to move. The moving end 194 moves the first clamping member 11 and the second clamping member 13 to the position of the material 2, and the driving member 19 drives the first clamping member 11 and the second clamping member 13 to clamp the material 2. The positioning fixture 1 further comprises a positioning column 195, the positioning column 195 is fixedly connected with the rack 193, and the positioning column 195 is used for positioning the equipment where the material 2 is located, so that the position accuracy of the positioning fixture 1 for clamping the material 2 is improved.

Hereinbefore, specific embodiments of the present application are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present application without departing from the spirit and scope of the present application. Such modifications and substitutions are intended to be within the scope of the present application.

Claims (10)

1. A positioning jig, comprising:

a first clamping member;

the movable base plate is arranged at a distance from the first clamping piece;

the second clamping piece is arranged between the first clamping piece and the movable base plate, and the second clamping piece is elastically connected with the movable base plate;

the bearing plate is provided with the movable base plate, and the bearing plate can drive the movable base plate to drive the second clamping piece to be close to or far away from the first clamping piece, so that the second clamping piece is matched with the first clamping piece to perform positioning and clamping operation.

2. The positioning fixture as claimed in claim 1, further comprising an open member provided on the carrier plate on a side of the movable base plate facing the first clamping member for pushing the second clamping member back toward the movable base plate.

3. The positioning jig of claim 2 wherein the positioning member includes a fixed portion and an arm portion, the fixed portion being disposed on the carrier plate, the arm portion extending from the fixed portion and being located on a side of the second clamping member facing away from the movable base plate, the arm portion, the fixed portion and the movable base plate enclosing a space in which the second clamping member is movable.

4. The positioning jig of claim 1 further comprising guide posts extending through the movable base plate and the second clamp member toward the first clamp member.

5. The positioning fixture of claim 4, further comprising a resilient member disposed between the movable base plate and the second clamping member and disposed over the guide post.

6. The positioning jig of claim 1, further comprising an elastic member disposed between the movable base plate and the second clamping member, and opposite ends of the elastic member are fixed to the movable base plate and the second clamping member, respectively.

7. The positioning fixture of claim 1, further comprising a guide rail, wherein the carrier plate is further provided with a guide that engages the guide rail, and wherein the carrier plate is movable along the guide rail by engagement of the guide with the guide rail.

8. The positioning fixture of claim 1, further comprising an actuating member drivingly connected to the carrier plate.

9. The positioning fixture of claim 8, further comprising a connector connecting said drive member and said carrier plate.

10. The positioning fixture according to claim 1, further comprising a limiting block disposed in a moving direction of the loading plate and spaced apart from the loading plate, wherein the limiting block is configured to abut against the loading plate after the loading plate moves to a target position, and the target position is a position corresponding to the positioning and clamping operation.

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